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Oil removal abrasive block for rail transit

A technology of rail transit and oil research, applied in other chemical processes, chemical instruments and methods, etc., can solve the problem of slow recovery of friction coefficient, and achieve the effect of eliminating slippage, avoiding the reduction of bonding strength, and improving the effect of oil removal and antiskid.

Active Publication Date: 2019-03-29
马鞍山市雷狮轨道交通装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-wear and viscosity-increasing performance of the abrasives obtained in this application has been improved, but on the basis of not changing the main formula of the existing EMU abrasives, this proposal puts forward higher requirements for the production process of the abrasives
[0005] To sum up, how to overcome the existing shortcomings caused by the slow recovery of the abrasive friction coefficient is a technical problem that needs to be solved urgently in the prior art

Method used

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  • Oil removal abrasive block for rail transit
  • Oil removal abrasive block for rail transit
  • Oil removal abrasive block for rail transit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] combine figure 1 , a kind of degreasing grinder for rail transit of the present embodiment comprises the following raw materials in parts by weight:

[0040] 10 parts of compound binder;

[0041] The composite binder includes an inorganic binder and an organic binder, and the addition ratio of the inorganic binder to the composite binder is 1 / 5, wherein the composite binder includes the following raw materials by weight: 2 parts by weight of the inorganic binder and The organic binding agent of 8 weight parts;

[0042]

[0043]

[0044]The organic binder described in this embodiment is organosilicon modified phenolic resin; the inorganic binder is boron glass powder; the anti-friction aid is phosphorus flake graphite; the fiber is steel fiber and copper-plated fiber; The iron powder is foam iron powder with a particle size of 100-200 meshes to increase the friction coefficient; the dispersant is ethylene glycol; the solvent is furfural liquid.

[0045] In this ...

Embodiment 2

[0065] A kind of degreasing grinder for rail transit of the present embodiment, its composition is basically the same as that of Embodiment 1, and its difference is:

[0066] A kind of degreasing grinding wheel for rail transit of the present embodiment comprises the following raw materials in parts by weight:

[0067] 8 parts of compound binder;

[0068] The composite binder includes an inorganic binder and an organic binder, and the addition ratio of the inorganic binder to the composite binder is 1 / 5, wherein the composite binder includes the following raw materials by weight: 1.6 parts by weight of the inorganic binder and The organic binder of 6.4 parts by weight;

[0069]

[0070] The organic binding agent described in the present embodiment is the mixture of organosilicon modified phenolic resin and boron modified aldehyde resin; Described inorganic binding agent is borax; Described anti-friction aid is the mixture of phosphorus flake graphite and carbon black; The...

Embodiment 3

[0085]A kind of degreasing grinder for rail transit of the present embodiment, its composition is basically the same as that of Embodiment 1, and its difference is:

[0086] A kind of degreasing grinding wheel for rail transit of the present embodiment comprises the following raw materials in parts by weight:

[0087] 7.5 parts of composite binder;

[0088] The composite binder includes an inorganic binder and an organic binder, and the addition ratio of the inorganic binder to the composite binder is 3 / 10, wherein the composite binder includes the following raw materials by weight: 2.25 parts by weight of the inorganic binder and The organic binder of 5.25 parts by weight;

[0089]

[0090] The organic binder described in this embodiment is boron-modified aldehyde resin; the inorganic binder is boron glass powder; the anti-friction additive is phosphorus flake graphite; the fiber is steel fiber and copper-plated fiber; The iron powder is foam iron powder with a particle ...

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Abstract

The invention discloses an oil removal abrasive block for rail transit, and belongs to the technical field of braking material preparation. The oil removal abrasive block for rail transit comprises acomposite binding agent, oil removal microcapsules, iron powder, a wear-reducing assistant, fibers, a dispersing agent and a solvent. The invention aims to overcome the defects that the friction coefficient of an existing abrasive block is recovered too slowly, and provides the oil removal abrasive block for rail transit. The oil removal microcapsules in the abrasive block are broken in a frictionprocess and release polyethylene (PE) wax, the PE wax is rapidly adhered to a tread under the action of friction heat, and an oil film can be quickly locked, so that the friction coefficient can be quickly recovered, and slipping is eliminated. According to the abrasive block, only one minute is needed from the time when that slipping occurs to the time when the friction coefficient is completelyrecovered, so that safe and stabile performance of the abrasive block is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of brake material preparation, and more specifically relates to a degreasing grinding wheel for rail traffic. Background technique [0002] Due to its high-efficiency transportation characteristics, urban rail transit has been put into operation or construction in most large and medium-sized cities. , The wheel-rail relationship of rail transit vehicles is also different. Some lines have many curves and serious wheel rim wear. During oil injection, especially when injecting oil, the oil will flow to the tread, resulting in lower wheel-rail adhesion coefficient, wheel slippage, extended braking distance and other risks, which will bring great hidden dangers to driving safety. [0003] At present, high-speed railways have been equipped with grinding wheels for wheel tread cleaners, which have the functions of increasing the adhesion coefficient, rounding, and removing water and oil, but for urban rail transit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B41/68C09K3/14
CPCC09K3/149C04B28/00C04B41/009C04B41/5059C04B41/68C04B2111/00362C04B24/42C04B24/30C04B24/34C04B24/2611C04B14/34C04B22/02C04B14/48C04B14/386C04B16/0691C04B2103/408C04B41/5024C04B41/5037C04B41/4857C04B41/4803C04B41/5022
Inventor 贺子铭彭程林
Owner 马鞍山市雷狮轨道交通装备有限公司
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